chore(ci): update builder action (#2387)

Author: DerekRoberts

.github/workflows/pr-open.yml

@@ -22,11 +22,10 @@ jobs:
         package: [backend, frontend, migrations]
     timeout-minutes: 10
     steps:
-      - uses: bcgov/action-builder-ghcr@ace71f7a527ca6fc43c15c7806314be5a4579d2c # v2.3.0
+      - uses: bcgov/action-builder-ghcr@v3.0.0 #v3.0.0
         with:
-          keep_versions: 50
           package: ${{ matrix.package }}
-          tag: ${{ github.event.number }}
+          tags: ${{ github.event.number }}
           tag_fallback: latest
           triggers: ('${{ matrix.package }}/')